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Tue, 18 Aug 2026 05:32:13 -0700 (PDT) X-Received: by 2002:a05:6102:5091:b0:72f:6669:286a with SMTP id ada2fe7eead31-76f2c540eb2mr2375236137.2.1787056332924; Tue, 18 Aug 2026 05:32:12 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c217fea2ce8sm173007066b.17.2026.08.18.05.32.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 18 Aug 2026 05:32:11 -0700 (PDT) Message-ID: <7dfcdd41-7552-43d3-a2af-915aefb6b218@oss.qualcomm.com> Date: Tue, 18 Aug 2026 14:32:09 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] arm64: dts: qcom: sm8150: describe download mode register To: robin@snyders.xyz, Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260811-submit-sm8150-dload-v2-1-fb688ac4896b@snyders.xyz> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260811-submit-sm8150-dload-v2-1-fb688ac4896b@snyders.xyz> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=S+/pBosP c=1 sm=1 tr=0 ts=6a8450ce cx=c_pps a=5HAIKLe1ejAbszaTRHs9Ug==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=OsHF4jKAAAAA:8 a=EUspDBNiAAAA:8 a=wptXqXowS06Jby1VKWcA:9 a=QEXdDO2ut3YA:10 a=gYDTvv6II1OnSo0itH1n:22 a=aAwnOj5LE8VeXseigifb:22 X-Proofpoint-GUID: ew0jY8SZ3v85piUjPigZElMtpc6Tg-Ao X-Proofpoint-ORIG-GUID: ew0jY8SZ3v85piUjPigZElMtpc6Tg-Ao X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODE4MDA5MiBTYWx0ZWRfXw/wIQohug0W1 ZPqKhGj4+zSmcszL3Q5sJ6L7auWGOuBeHWxkKmRoj42M41MNr0ucB2+YHFEwL8zC+ELX5wHgcnO JMVBjsEjnpETwAP4O+0Ylpv1ZshzJ/yI8v1+Fe6bq1ZhJLGXgy8DoFLygLLg36k7VdxpsEsa7Yi oAyp7ZyGOHcwJLEfHzuguFRHRDUiZjE941jEx9A3xQsL/FuIEKJ0EUFDMrJ2atA5V1Xdzj4cXPV +U7dXXj1xrAz2ng97c8W1M9y6maQFASFh8bwxWbxJ+vUCwdxhFlUUm6L3mNLjHXrutWLMCAT2lZ aTg7kybcc3B4/bd782p3L9OmUUIi+WQCveQD06avkG+6LUYBCpXEZb6jdtBeR23J38rmnJNdCRH 25RsIT5l/cNjcnZAb9fpD5/ss23yCEpyMTRo90FyvYE0QoWxe60vUxdq8uuon6DRYOCjeDbbfEr JTvhDUhPd3suSjfSIlQ== X-Proofpoint-Spam-Info: AW1haW4tMjYwODE4MDA5MiBTYWx0ZWRfX5QxZAi6OJLM5 ZEZux4P55OcSzbzdZ51v1tflSEuBRFI6qLGwTDkMS5KPkDeVYcYXLOolTLyb6ZuuPKCZ2Pi4LXh jcUOIpyKqsG8Oi9mxeSdu+YklceuYzQ= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-18_01,2026-08-12_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 malwarescore=0 spamscore=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 impostorscore=0 adultscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608180092 On 8/11/26 11:39 PM, Robin Snyders via B4 Relay wrote: > From: Robin Snyders > > The SM8150 SCM node does not describe the TCSR download-mode register. > Without it, the SCM driver falls back to a firmware call and the > mode cookie may remain set across a warm reset, causing the next boot to > enter the Qualcomm crashdump transport. > > Describe the TCSR window and point qcom,dload-mode at offset 0x13000, > matching the layout used by SM8250 and other related Qualcomm platforms. > > On a OnePlus 7T Pro this changes software reboot from a reproducible > 05c6:900e transition to six consecutive successful boots. > > Signed-off-by: Robin Snyders > --- Reviewed-by: Konrad Dybcio Konrad